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There is one solution to the growing mountain of recyclable paper in Hong Kong: compost it.
Composting is the breakdown (decay) of organic matter by soil micro-organisms into humus, the complex biological matter that is the essential factor of soil fertility.
This process can take years in the wild, but with modern methods it can be as short as a fortnight.
It can also be done on an industrial scale, and a growing number of cities around the world incorporate composting schemes with their refuse and environmental management.
The US military even composts some of its old TNT explosives.
The beauty of composting is that it solves a number of refuse problems at the same time and creates a new and very useful product.
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